| No. | Cultivar | Plant Size | Leaf Color | Variegation | Var Color | Origin | Flower Color | Season | Source | Registered |
|
1
| 'Sum Blue' | Small | Blue/Green | | | Hybrid | Near-White | June to July | Kwick, Charles | .2019 |
|
2
| 'Sum Cup' | Large | Light-Green | | | Unknown | Unknown | Unknown | Unknown | --NR-- |
|
3
| 'Sum Cup-o-Joe' | Large | Med-Green | Marginal | White | Sport | Pale-Lavender | June to July | Elslager, Ed | .2000 |
|
4
| 'Sum Enchanted' | Large | Med-Green | | | Hybrid | Unknown | Unknown | Goodwin, Randy | --NR-- |
|
5
| 'Sum Like It Hot' | Large | Light-Green | Streaked | Yellow | Sport | Pale-Lavender | July to August | Elslager, Ed | .2003 |
|
6
| 'Sum Piecrust' | Giant | Light-Green | | | Sport | Pale-Lavender | July to August | Elslager, Ed | .1999 |
|
7
| 'Sum Ringer' | Giant | Med-Green | Marginal | Yellow | Sport | Pale-Lavender | July | Green Mountain Hosta | --NR-- |
|
8
| 'Sum Streaker' | Giant | Yellow | Streaked | White | Sport | Pale-Lavender | August | Elslager, Ed | .2005 |
|
9
| 'Sum Thing Else' | Large | Dark-Green | | | Sport | Pale-Lavender | July to August | Unknown | --NR-- |
|
10
| 'Sum Upper Crust' | Giant | Light-Green | Streaked | White | Sport | Pale-Lavender | July to August | Elslager, Ed | .2004 |
|
11
| 'Sum Zero' | Large | Dark-Green | | | Sport | Pale-Lavender | July to August | Solberg, Robert | .2011 |
|
12
| 'Summer in Georgia' | Large | Blue/Green | Marginal | Yellow | Unknown | Med-Lavender | August | Anderson, Jim | --NR-- |
|
13
| 'Summer Sunrise' | Unknown | Light-Green | Marginal | White | Unknown | Unknown | Unknown | Van den Top, Jan | --NR-- |
|